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September Weather in Leimen, Germany

Last updated: August 23, 2025

In September, the average temperature in Leimen, Germany hovers around 15°C (60°F). Expect a minimum of 4°C (39°F) and a warm maximum reaching 31°C (88°F). Be prepared for some rain, as 64 mm (2.5 in) of precipitation is expected over 9 days. With an average humidity of 85%, you'll feel the moisture in the air—perfect for those who enjoy a lush environment!

September Temperature in Leimen

In September in Leimen, the average temperature is 15°C (60°F), with maximums reaching as high as 31°C (88°F) and minimums dropping down to 4°C (39°F). This variation in temperature makes it advisable to pack layers to ensure comfort during your travels.

September Weather in Leimen: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Leimen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Leimen, September typically has an average temperature of 15°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec353943505666676759524238
Data source: Temperature data for Leimen generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Leimen

In Leimen in September, the precipitation amount is 64 mm (2.5 in) over a span of 9 days.

September Precipitation Trends in Leimen

The chart displays monthly precipitation patterns in Leimen, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Leimen, September typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7174804390927973646864116
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Leimen

In Leimen in September, humidity is 85%. With an average temperature of 15°C (60°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat uncomfortable for travelers who may find themselves constantly seeking shade and hydration.

September Average Humidity in Leimen

This chart illustrates the average monthly humidity levels in Leimen, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Leimen is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%83%79%82%83%84%86%88%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Leimen

In Leimen in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Leimen, you can refer to this Hourly UV Index in Leimen.

Maximum UV Index Levels in Leimen for September

The chart shows the monthly maximum UV Index (UVI) for Leimen in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Leimen typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689876421
Data source: Leimen September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Leimen Compares to Other Months

Weather in Leimen varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Leimen, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Leimen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)71 mm (2.8 inches)91%low
February Weather4°C (39°F)74 mm (2.9 inches)89%moderate
March Weather6°C (43°F)80 mm (3.2 inches)87%moderate
April Weather10°C (50°F)43 mm (1.7 inches)83%high
May Weather13°C (56°F)90 mm (3.6 inches)79%very high
June Weather19°C (66°F)92 mm (3.6 inches)82%very high
July Weather20°C (68°F)79 mm (3.1 inches)83%very high
August Weather19°C (67°F)73 mm (2.9 inches)84%high
September Weather15°C (60°F)64 mm (2.5 inches)85%high
October Weather11°C (52°F)68 mm (2.7 inches)88%moderate
November Weather5°C (42°F)64 mm (2.5 inches)89%low
December Weather3°C (38°F)116 mm (4.6 inches)91%low

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